Does compelled duels target suffer any effects if they make their initial saving throw?

@JeremyECrawford does compelled duels target suffer any effects if they make their initial saving throw?

— HTMauney (@HTMauney) December 5, 2016

A spell tells you if the target suffers an effect even if the target succeeds on a save. Compelled duel doesn't do so. #DnD https://t.co/9eAZYhTgSC

— Jeremy Crawford (@JeremyECrawford) December 5, 2016